Automatic washing machine



Aug. 16, 1927. 1,639,024

E. J. CARROLL AUTOMATI C WASHING MACHINE Filed Jan. 12. `1922 a sheets-sheet 1 i Invertia -1 CMA/m66 16 192 Aug 7 E. J. CARROLL AUTOMATIC WASHING MACHINE Filed Jan. 12. 1922 8 Sheets-Sheet 2 l 1 A Aug 6 927 E. J. CARROLL AUTOMATIC WASHING MACHINE 8 sneets-she'et 5 Filed Jan. l2. 1922 M11/"ahw 16 1 Aug -927 E. J. CARROLL AUTOMATIC WASHING MACHINE Filed Jan, 12, 1922 8 sheets-smet y4v lllllll Hl 4J N l w l s, w A

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laren for v 16 1927. Aug v E. J. CARROLL AUTOMATIC WASHINGMACHINE Filed Jan, 12. 1922 s sheets-sheet 5 1,639,04 E. J. CARROLL AUmolATIc WASHING naman EildfJzm. 12. 1922. 8 sheets-sheet '7 Aug.A 16, 1927.

Aug. 1e,A 1927. 1,639,024

E. J.' CARROLL AUTOMATIC WASHING MACHINE Filed Jan. 12. 1922 8 sheets-sheet a Patented Aug. 1e,l 192g.

UNITEDsTATEs .LPTEN1-OFFIYCE--- EMILJ. CARROLL', 0E ciNclNNATr, oHIo, AssINoR To THE AMERICAN LAUNDRY MACHINERY COMPANY,A

AUTOMATIC WASHING MACHINE. l,

Appncatin med January 12', 1922.' seriaiNo. 528,696,

This invention relates to automatic -washinfr -machines and is an improvement upon the invention described and claimed in my prior application for automatic-washing machine, Serial Number.405,274 ,`led Augustl 23, 1920, to which application reference may be had for a more complete description of many portions of the'mechanism here referredto only in a generalmanner.'V

One" object of the present invention is to provide an improved automatic washing machine embodying suitable means constructed and arranged to indicate at all times the progress of the washing'operation and the particular stage of the washing cycle being performed in the machine. 1

A further object f the invention is to provide an. improved automatic washing machineembodying a stationaryouter casing having a door and an inner movable cylinder or receptacle containing theclothes to be washed and having a door, said machine being provided with 'means to register the doors of the outer casing and cylinder at f the conclusion vof the 'washing cycle and vto automatically open the A further object of the`invention is to prov-ide an improved automatic washing ma,- chine in which' the registration of the casing and cylinder doorscontrolled automatically even-though the cylinder be 'of the Oscillating type', so thatv proper registration is sccured by taking into account thedirection of rotation'of the cylinder, its speed cfrota tion and the time. Y

A further object of the invention is pro vide an automatic washing machine so ar.-

ranged that .closing of a door to the machine initiates the washing cycle, said cycle being thereupon carried out automaticallyto completion andincluding automatic opening of the controlling door.

A Sfurther obj ect of the invention is to improve .properly provide for stopping the machine under various conditions, such as the normal automatic stop, a manuallyl controlled stop 'for inspection purposes, and an extra stop for use in case of emergency, and to also take care of multiple compartment Washing 'machines.

doorv of said casing.

1 having a sliding door 2,

the control .circuits and system to- Further objects ofthe invention lare 'in'.

or CINCINNATI, oHIo, A conronATIoNfoE oHIo. y.

.partobvious an'din part will appear morein detail hereinafter.

The invention comprises the construction and arrangement of-parts hereinafter described and claimed. y y In the drawings-.which represent .one suitable embodimentl of the invention, Fig. l is a front elevation; Fig. 2 is an end .view from the' right in Fig. 1, parts being broken out and 1n section to'expose interior parts; Fig. 3 1s a frontelevation of the process con.- trolling d ru'mfand automatic recess indicat- Ing devices, the casing door eing Aopen` for convenience of illustration; Fig. '-4 is a front elevation, Ona-larger scale, showing the door operating Aillustratingthe ele tric controlling circuits and systems; and Flg's. 9 to 13, inclusive, are diagrammatic views illustrating control systems for multiple compartment-washers.

Referring to the drawings, the .washing Ina-chine. shown comprisesl a jsuitable including. -a stationary'outer casin or tub A and in w -ich casingis journalledarotatable cylinder 3- have mechanism; Fig. 5`is a sectional' elevatlon of the line 5 5, Fig. 4'; Fig. 6 is frame I.

ing a movable or hinged door 4' providing".

ing the same. The cylinder is driven by access to the cylinderfor charging or unload x suitable gearing, marked generally 5, from a suitable power source, such as the reversible electric motor 6, which is provided with suitable control vmechanism hereafter described more in detail, enabling said-motor to be intermittently .reversed and thereby provide for oscillating said cylinder 'or rotating it first in one direction and -then in the other to produce efficient washing effects. The motor or the driving mechanism is also provided with a suitable electric brake, -in-I dicaxted generally ati-7, the purpose of which is to quicklystop rotation of the cylinder andther'eby assist in more exactly spotting or registering the .cylinder and casing doors as will more fully appear. The 'details of this electric .brake are immaterial and it maybe, for example, of the form described in my prior. applicationjreferred to.

Suitably located adjacentl to the machine and preferably'at a higher level are a series of tanks or receptacles 8 containing those .ingredients which are used during the washing process, for example, soap, soda, bleach, sour and -blueing. Communication Qbetween said receptacles and the casing is established through a series of 'pipes'9 in each of. which is a valve 10 controlled by a solenoid or electro-magnet 11. 12 Vand 13 indicate the hot and cold water supply pipes also Aprovided with valves 10 controlled by solenoids or electromagnets 11 and communicating with the casing through a pipe 14. 15 is the drain valve controlled by a solenoid or electro-magnet 16, while 17 is 'the automatic loat operated liquid level controlling device.

` All the parts so far described are or may be of the s ame construction and arrangement as those illustrated in my prior application referred to.

Referring now to Figs. 4 and 5, the present machine is provided with suitable mechanism I for .automatically operating the door of the outer trb vor casing. ySaid door in shape is the segment of acylinder and is mounted to 'slide in suitable end guide ways. On its cvlindrical surfaceit is provided with suitable rack .teeth 18, one set at. each' end, .which engage with .pinions 19 'on a'jshaft 2O'actuated through suitable reduclng gearing, representedgenerallyat 21,by a reversible elec-f tric motor 22.

The apparatus is also provided with-sultable automatic controlling an'di'ndicating de vices, including switches, rotating. controller drums, relays, contacts, etc., many ofswhich will be described and their location set: forth Y as the description of the operation proceeds..

Many of these controlling devices may be mounted upon a suitable panel or panels' supported upon or .near the machine, or at distant points if desired. In the drawings, the" machine shown is provided with three panels,

to Wit, panel 23, which is the washer reverse A R drum panel -and carries the controller and washing machine, for controlling theftime drum devices for producing rotation in opposite directions of the washing machine' cylinder -F ythe panel 24, which may be called the process panel and contains the .controllingv drum and `other devicesfor producing proper liow 'of washing. materials .to andffronfi the.

of treatment y with such materials, andl for indicating the progress and stage ofthe cycle' offwashin o erations; and a panel25, which may be caedtherelay panel, and whichcarries the controlling relays.

fer-ring irst to the process drum lpanel 24, said panel is indicated in detail in Fi l. 3. It comprises a suitablecasinghaving a oor 26 providedwith, an upper window 27 of clear glass, behind which may beplaced a series ofvtransparent or 'translucent indicatingfcards bearing lege-.11de as ,et 28, Aindicamally closed emergency stop buttons.

45 is a limit switch'of suitable form, prefing different stages of the washing process or cycle and, behind each of which legends is an electriclamp 29. lThe door also is 'provided with two smallerfwindows 30, one of\clear glass and the other of colored glass,such as red, behind which are mounted a-grunning lamp 31 and an idle lamp 3`2. `A lower window 33'eXposes to view the rotating process controller drum-34 driven-through suitable reducing gearing, marked generally 35, by a motor 36 and provided with a series of conducting segments 1-13 etc., co-operating with contacts 114 etc. in circuits including the several solenoids 11,16, etc. 'This controller and i the co-operation of its segments with circuits controlling the solenoids for actuating theb4 valvesIare the same as those in my prior v113, 114 so that as each stop in a washing cycle is initiatedvand proceeds the correspondmg lamp in the indicating portion o f -panel24 is `illuminated and a legend 28 is thereby rendered visible or legible to at all tunes indlcate to an observer what particular step of the washing operation is proceeding.

The circuits for these indicating lampsjofcourse, eed not be separate circuits, asshown,

but might be coupled in parallel or otherwise tothe respective circuits through the several S'olenoids 11,16., so as to operate conjointlyv therewith, or anyv other suitable indicating means or control mechanism therefor might L obviously beused for the purpose.

eferring now to the wiring diagram, Fig. `8, the invention will morereadily be understood' iffsome reference is first made to some of the features there shown.

4II is the start button whichg may be a A l simple normally open switch suitably located.4115

at any convenient point on the machine.- .42,-

43.fare normally closed'inspection Stop buttons located 'at suitable points. 44 .fare-no'rerbly mounted on the vtack of the tub or fcasin so that its button isengaged'- and the switc lisfclosedeby an abutment 46-on the doorv when said door is"f,ully opened', said -vabutment'moving away from the switch as to open. T v

47 is another limit switch suitably mounted the door closets and' allowing said limtgswitch is closed when the door is closed andv is vopened as the door reaches open position.

" 49 is another limit switch also-suitably located on the tub or casing to be actuated b an abutment 50 on the door, said Switci l f being open when the door is open and being iio `closed as the door reaches closed position.

case may be.

' ing of said initiate operation of the process drum on The operation is as follows:

Speaking generally, and assuming that the various subsidiary switches 51, 52 and 53 are closed, pressure on start button 41 starts` operation of the door operating motor 22, causing the vdoor 2 to. close. The closdoor actuates other switches to panel 24 by operation of its motor 36, and still other switches to initiate and carry on operation of the washer reverse drum controller on panel 23. The 4cycle of washing operations proceeds automatically with actuation at intervals of the necessary sole-ov noids to control the flow ofy washing mate- I rials to and from the drum and to also conv 'trol the periods of the several steps of the washing method, while at the same time the indicating mechanism indicates the stage of, the process being performed, all the foregoi ing being controlled by the process drum.

, stops -At anytime the process may be stopped and the door maybe opened for-inspection purposes by actuating one 'of the inspection 42, 43, while a quick and immediate stop can be secured in case of emergency by operating ythe' emergency stop button 44. Under normal operation thecycle proceeds automatically until in the natural course of events a normal stop` is automatically effected, when the series of starting operations is reversed -to produce the normal stop, which concludes with the automatic-opening of thedoor.

.Taking u us assume t "at the circuits now lin detail, let the machine has been loaded with a charge of materialto bewashed; that the several supplyy tanks or receptacles 8 are filled; that thehot and cold water supplies are' turned on, and that. the door 4 to the washing machinecylinder is closed. In this position the casing door-2 is open, switch 45 is closed, switch 47 is open' and' switch 49 is open. Closing thestart lbutton 41 produces a circuit as follows;

,From L1, by wire 54, 'start button41 to point 55, which isthe right hand contact of a relay, marked-generally 56, having a coil -57 and 'a'second contactS, contacts A55,58

being normally open, thence'through a res'istance 59, through the coil of a closing relay 60, wire 61, switch 45 to terminal 62, thence through inspection stops 43, 42 and then by way of wire 63 to L2. The effect of the circuit is to energize closing relay 60.

I Energy is also supplied. to the coil 57 of relay 56, flowing to and through said coil from point 55 and thence through a resistance ,64' to the terminal 62 and thence throu htheinspection stop buttons 43, 42

as be ore. A maintaining circuit for this coil 57 will hereafter be referred to.

Energy is now sup lied to the door operating motor 22 yas fo lows: from L1 by way.`

of wire to contacts 66 of relay 60, then to contact 67 of the opening rela an arm of the armature 69 t ereof to the point 70, thence by way of wire 71 through the door operating motor 22, wire 72 to coni causes the door k2 to autocatica ly close. As

it moves away from open position switch 47 'closes and as it reaches closed position,

switch 45 is opened and swith 49 is closed. v The initial closing of relay 5,6 when the start button is pressed also energizes the coil of a brake relay 78, closing said relay in running position. This circuit is as follows: Y.

From L1 by wire 79, Contact 58, wire 80 to terminal 81, protecting resista-nce 82, coil of relay 78, wire 83 to point 75, point 76, and thence b. wire 77 to L2. The c osing of limit switch 47 as the casing door starts closing completes a circuit to the coil of the opening relay 68, which circuit will be hereafter referred to.

68, through los i As the door reaches its closed position,

switch 45 opens, thereby drs-energizing the` closing relay 60 and'at thesame time closes switch 49,'the closing of which switch inilows: from L2 by point 84 of the brake relay 78, through the armature 85 of said .relay to the point 86, wire 87, switch 49,'wire 88 t`o the washer reverse drum panel 23, protective resistance 89 to`point90, from which` two circuits extend as follows:

l (a), From point 90 through wire 91 and coil 92 of a contactor to point 93 and thence to' L1.V (b). From point 90 through wire94, coilv95 to 96, wire 97, contacts 98 (now closed) vwire 99 to terminal 100, then by way ofwire 101,l resistance 102, coil 103-to the point` 104 and by wire/105 to L1'. The first circuit a closesthe main switch 106 of the washer reverse drum controlling circuit .and j .also QIQSQS @entracte 9,8, The secorid/circuit b energizes coil 103 on the process drum panel 24 and establishes the first running circuit on said panel, to wit, from L1 on panel 24 to the point 104, thence through the contacts 107 to point 108, lwire 109 to point 110 and thence in shunt through the armature and field of pilot motor 36 to L2. The

segments on the process controlling drum are all of 'L1 polarity, the circuit therefor being from L1 by wire 105 to point 104, point 108, wire 109 to point 110, wire 111, contact 155, to the' running segment 112, all

of the segments on the drum being electri-h cally connected, as indicated.

Energization vof yt-he vpilot motor 36 pro` duces rotation of 'the process drum,l each of its segments, marked generally 113, coming in turn and in proper order into engagement with one of the several contacts 114 connected in shunt circuits 115 to the various solenoids or electro-magnets 11, 16,

etc., ywhich control the flow of washingmareverse drum panel 23 to the point 93thence through the main contacts 106 to the point 119, wire 120, pilot motor 121 to L2. Said pilot motor 121 turns the controlling drum .on t-he washer reverse drum panel and va'- ries the circuitsthrough the washer cylinder operating motor 6 to produce rotation of said cylinder first in one direction and then in the other direction by circuits as follows: from Lto point 93, contacts 106, point 119, wire 122 topoint123, segment 124, segment 125, contact`126, wire 127, through the armature of -motor 6, 4contact 128, contact 129, segment `130, segment 131,

"contact 132, starting resistance 133, point 134 to point 135, series lock out coil 136, to

point 137, wire 137g, to L2.

The next step is to cut out starting resistance 133, the path being the same as 'before up to the segment 131, from which the cir-.

cuit continues through the segment connections to segment 138, 'thence to contact 139 through resistance 140 to the point 134 and thence as before.

The next resistance is cut out inthe same fashion, the circuit being as before up segment 141 to contact 142 and thence through resistance-143 to the point '144, the current by-passing the lock out coil 136 of the relay, the contact linger 145 of which is closed. Continuing, the circuitl extends, from the point 144 through contact finger 145 to the point 137, wire 137-a, to L2. The` resistance is cut out in this manner by steps until finally. the motor is thrown across the `line by a circuit running to segment 146 from which the current Hows to contact 147 l l to pointx148, point 144, point 137 to L2.

It will be noticed that resistance 149. is not used in an ordinary run, it being for the purpose of acting as protective resistance in the event that the lock out relay does not lock out correctly. The ath wouldthen be from contact 139' throug protecting resistance 149 to point 148, point 144, point 137 to L2, the protecting resistance 149 being of the same value'as resistance 140.

It is now only necessary to reverse the motor by segments on the other half of the cont-rolling drum as the resistance accelera-- tion isa duplicate in the two directions. When the drum is operating upon the re verse set ofv segments the path is as follows: from L1 to point 93, point 119, contact 123, segment 150, segment 151, lContact 128 through the armature of the motor, contact 126, contact 152, segment 1,53, segment 154, contact 132 resistance 133,`point 135, lock out coil 136, point'137 to L2. The direction of current throu h the armature is the re-" Verse of l,that be ore described. The shunt field of the motor is in a circuit .from L1 tov the point 11,9, through theishunt field to L2 under both conditions olf rot-ation. As

lstated, the further rotatioh ofthe washer reverse drum again cuts out 'resistance and I nally throws the motor across 'the line. As the drum revolves the motor therefore revolves first in one direction and then in the other,'wi'th like motion of the washing machine cylinder, as is the custom in 'ma-` chines of this kin v The maintaining circuit for the relay 56 (hereafter referred to as circuit c) should here be described and is as follow: from L1" on the process drumfp'anel 24 by Wire 105 to the point 104, -point 108,` wire 109, point 110, Contact 155, running 'segment 112, segment 158, contact 156, .wire 157, point '55',v coil 56, resistance. 64, point 62 and thence Ithrough ,the inspection stop'buttons-by wire 63 to L2.

Stop circuits.

'the reverse of the-starting cycle, with-the exception that there are-,three conditions un- 1 der which the machincan or will stop, to wit, an emergency stop, inspection stops, and normal stop.-

The emergency stop is accomplished by opening switch 44 which is of Ll'polarity. Opening this switch immediately halts all operations. Of course, aplurality of emergency stop buttons in series, two thereof bemg shown, could be -located at` different The stopping cycle might be said to bev roo 'the aforesaid results.

points wherever convenient or desirable and the actuation of any one of them produces After the emergency stop switch is opened, closing of said lswitch accomplishes nothing .unless the door to they washer happens to be in position ready to open, whereupon said door will immediately open. In any event, the starting button must always be pressed to again start the washer following an en'ieigency stop.. Several inspection stop switches of which two, marked 42, 4B, are shown, can also he located at convenient positions, These .inspection stop buttons are in the same maintaining circuit c for ythe relay 56 which includes the Contact 156 which c-o-operates with segment 158. Inspection stop buttons 42, 43, etc., are on one side and segment 158 and-contact 156 on the other side of the coil of contactor 56.

Therefore, either t-he opening of an inspecfl tion switch 12, 43 or the running of segment 158 oit' from the contact 156 at .the con-v clusion of a cycle and' the-completion of a Y' full rotation 'of the processcontrolling drum accomplishes the sameeffects." In either case opening of this maintaining circuit 0 allows' the washer to continue 4to run for a.

few moments untilthe washing cylinder is rotating in the proper direction and at the proper speed and has reached-the propel' position. IVhen all. conditions are exactly correct the brake is automatically applied, the washing cylinder is stopped with its door spotted or registered with the casing door,` and the casing door automaticallyopens..

These effects are produced regardless of whether anormal stop is produced by the process drum or by .opening an inspection switch, so that one description will suffice for y both conditions. When a normal' stop is ob.

' tained by operation of the process drum the complete washing operation 'has been concluded andthe machine is ready`to be emptied and reloaded and the cycle again initiated by closing the start button, as before. When the stop is due to operation of an inspection switch the process drum is halted and although' the casing door is also opened, pressure of the start bnttonwill not begin a new cycle but will cause the mechanism to continue the process at the point where it left off and carry through the remainder of the operation to the conclusion of the cycle.

At this point it maybe well to state that as described in my prior application before referred to, the Several segments upon the process dnum forcontrolling both the-seg n ments 113'for the solenoids and also'the segments 116.' for the indicating' lamps are, off course, made readily adjustable both as to circumferential position and as to .length so that the apparatus may be madeto perform any desired washing process involving the automatici"delivery to the washinggmlachine -machine cylinder, preferably being so set opena normally closed switch 161. yfgizitable means maybe employed for this of any number of different washing inaterials, such as those before referrelfjtogandf" the draining of the macliinenibetwden"istepsl,

of the process and at its conclusion, as is usual. v "f Let us assume now that themaintaining circuit chas been opened either atftlieseg ment 15S and contact 15.6 or by.-opening anw inspection stop. Opening saidgcircuit'deterruines the time element in stopping themacliine and opening its door.v The time -ofl stop is therefore/determinedeither by the willl of the operator who actua-tes the in-` 4spection stop or automatically by the effect of the process drum at Contact 156.

The stopping of'the machine is'also controlled by both'the speed and direction of rotation of' the washing machine cylinder. For this purpose and 4to secure accurate ef# fects of this element oft-he' control system the washer reverse drum ony panel 23has itsrotating shaft 159'* providedatone end, such 'asits lower end, witha'cam 159I which actu-. ate's a normally closed'switch 160 to-be heifer' inaft'erreferred to. 'This cam is setwupon the druml shaft in timed relation withthef segments of said drum which control the'ldirection and speed of rotation of the washing that the switch 160 isv opened when thewashing cylinder is revolvingin one .definite or predetermined direction andat a-relatively low speed so that it is easily braked to a fixed quick stop. This is for the reason that thel position of the washing cylinder at which the stopping operation begins may be so chosen orvp'redetermined that the drift or` the purpose of securing a braking action which compensates for and has due regardimv lio

for any and all cylinder drift. This element of the control system insures accurate spotf. ting or registration of the door of the washpurpose the washing machine is provided `with suitable means adapted-once during each .revolutionof the washing cylinder to Any urpose. For example, 'said switch may be- 1n a circuit including .an interrupted contacting ring or rings aft ooperatinfr contacts tat one end of cybllnder shaft, a dead segment 1n sai ringer rmgs ing cylinder' with the casing' door. `For this ,120 v and the other over the portion including the dead segment 164. This latter brush is circuinferentially adjustable such as by being supported by a ,member 167 having slots 168, Fig. 6, to enable it to be timed with reference to `the position of the door of the casing. The brushes are, of course, insulated frolnthe main frame and in a circuit to be described.

iVhen the maintaining circuit c is opened as before described the washing machine will continue to run until the speed of the cylinder, its direction of rotation and its position are correct, as determined by simultaneous opening of switches 160, 161, whereupon the brake relay is opened by deenergization of coil 78, the brake is applied, andv the. drift of the cylinder, with the braking action, results in bringing the cylinder to rest-with the cylinder and casing doors in proper registering relation.

The circuit through the brake relay is as follows: from L1 by wire 169 to the point 170, thence in shunt through the two switches 160, 161, to wire 171, thence to the point 81, wire 172, through coil 78 and thence by wire 83, etc., to L1. When the coil 78 is deenergized the braking circuit -is as follows: from L1 through the shuntv brake 173 to point 174 through coil 17 5 to point 176 through contacter 177 to point 178, point 179, wire 180 to point 181, to point 182 on the brake relay through the arm 183 thereof to point 84, and thence by wires 185 and 83 to L2. The purpose of resistances 186 and 187 is protective. They are inserted by the time relay, the solenoids of which are shown, so that full voltage is not left on the brake during the time the machine is stopped, it being obvious that some braking power should be maintained on the machine while it is at rest. I

\ Energization of brake coil `172'3actuates the brake indicated conventionally at'7, Fig. 2, and quickly stops the drivingmotor 6, the gear connected therewith and the washing machine cylinder'. `The filial condition is the automatic opening ot the casing door, the circuit for which isv as follows: from L1 on panel 25 to the point 58 through the lcoil 68 of the opening relay through protective resistance 188, limit switch 47, point 181, point 182, point 84, wire 185 and thence, as before, to L1. Energization ot the open-` ing relay coil 68 completes a circuit through the door operating motor as follows: froml when the coil is energized.

L1 on panel 25 to point 66,'to point 73, wire 72, door operating motor 22, wire 71, point 70, point 76 and wire 77 to L2.

The door is therefore automatically opened which in turn closes limit switch 45 and opens limit switches 47 and 49, leaving the washer withits doorsI spotted or registered and ready to be unloaded and loaded for another opeuation. Pressing the start button initiates a new cycle as bel'ore.

It remains to describe the functions and ei'ects of the resistance 189 on the relay panel, the resistance 190 on the process drum panel, and resistances 186 and 187 in the shunt brake circuit.

tesistance 189 is 'a shunt protective resistance for the coil 7,8. The current coming from coil 82 has the choice of two paths from the point 191, the first being th'ough the coil 78 to wire 821 and the second being through the resistance 189 and a tail 192 on the contact finger 85, thence to point 84 and wire 83. This resistance cuts down the holding current forthe coil. Resistance 190 is likewise a protective resistance in shunt across the coil 103, being thrown into the circuit by the closing ot' the contacter 1923 This coil 190 supplements the protecting resistance 102 which is initially thrown into the circuit through the coil 103.

Resistances 186 and 187 are likewise pro.- tecting resistances for the coils 194 and 175 respectively. In connection with this brake protecting relay it will be noted that the l" initial braking circuit is through the short circuiting finger 177 by-passing the resistanee 187 and applying full current to the brake. The efect of coil 175 is to lift the plunger of the relay and also lift the finger 177, thereby 'inserting resistance 187 and limiting the currenton the brake. At the same time another circuit isintroduced for the protection of the relay coils, to wit, from L1 through coil 186, coil 194 to point 179 and thence through wire 180 to the point 181, etc.

Figs. 9, 10 and 11 show the invention applied for use in connection with a washing machine the rotating cylinder of which is provided with twocompartments separated by a diametrical partition, an arrangement involving two diametrically'oppositewdoors. For example, in Fig. 10 the washing machine cylinder diagrammatically`represented at 3 has a diametrical partition 200 forming two semi-cylindrical compartments provided with diametrically opposite sliding doors 21, 2b. This form of machine necessitates an arrangement of controlling circuits and mechanism enabling the machine to be selectively stopped with either of its cylinder doors registering with the casing door so that each compartment in turn may be unloaded and evenv as many asten or more. Forv examp for these doors may be like those heretofore described with such exceptions, or modifications as are hereafter described and illus,- trated in Figs. 9, 10 and 1 1. -Instead'of'two 5 brushes 165, 166 co-operating with current conductingrings rotating with the cylinder, three brushes are used, marked respectively 165, 166"v and 166"- Brush l165 cooperates with a circumferentia'lly 'continuous current conductingy ring 162, while brushes 166", 166b both` cooperate with a ring portion 162l i current conducting relation with ring 162 andA provided with a dead segment 164. The two brushes 166, 166bqare spaced 180 apart and by circumferential adjustment of either said brushes oro the ring'portion y162".rela tive` to the cylinder. 3,:the .parts are,v timed f tozsecure proper registering relation between the :ylinder: and 'l casing doorsas before state L v v Inthis arrangementthere are twov ins c. tion stop buttons marked 42, 42.- a'ch of s aid buttons has an extension,.tha`t of but- A' Vton 42L carrying a switch member 42x in a While the extension onbutton42". actuates the switchf.1.2yV in a circuit 202 from the brush circuit 201 Vfrom brash 166Mo the wire 171,

166'to the wire 171..- (Compare with Fig. 8). Wires 169,v 171 and-63 and oints 62 and 170 are the same as shown in ig. 8. With this arrangement actuation of either one of the inspection stop buttons opens one of the circuits 201 or 202, `so thatsaid opened circuit is ineffective and thel brush 166b or 35 166n therein becomes ineective, but the other of the two brushes with .its corresponding circuit 202 or. 201 becomes effective. In other words, if inspection stop button 42*t is pressed and held open brush 166aL is left effective and cooperates with the other parts of the control mechanism, just as ,did the brush' 166, Fig. 8, until the cylinder stops with its door 2a in proper registering relations with the casing door, whereas, 1f stop button 421 is pressed the brush 166b becomes effective' and the cylinder stops with its door 2b in proper registering relations wi-thgthe casing door. v 1

If desired, two separate ring portions 162, 1621, each having al dead segment .164 can be provided, asishown in Fig. 11. Each one of these rings .with its dead segment cooperates with one of the brushes 16.6, 166b in Ithe manner before describeda Each of the twoar- 55 rangements shown in Figs. 10 and 11 has some advantages onthe question of circum- V ferential adjustment of brushes or deadsegment, as thecase may be, for timing pur-A oses.

i; U0 From the foregoing it will be clearly understood that by further modification of the controlling circuits provisions maybe in- `reluded forlccontrolling a c l number of circumferentiayspaced doors,

inder with any Figs. 12 and 13 correspond'to Figs. 9 and..10 but show another-arrangement for a cylinder having three compartments and threefdoors spaced circumferentially 120 l apart. This' arrangement' requires three brushes 166,=16`6b v, and 166 spaced-120 apart and all cooperating withthe ringgmemb'er162 having a dead v segment 164.. 'Either the brushes together or i l theringfmember'162a are circumferentially adjustable for timing'purposes. .In this 'case the'circuits are rovided with three sepa-rate.

inspection stop` uttons 42, 42" and 42% each A inspection stopbuttons1the arrangement be- .ingisuch -that:'whe `nf. any inspection stop jbatl ton is pressed the: circuits to two of theb `es arci-911911955. .hav-iig one. of fgbruS QS effectlveiblthatsaid bYUShWhenf-it '90119rates'fi-with.:t,lief dead Segment 164 60m2" :pletes 'the.chainfof-stoppingfactors and ac# l l properidoor in registration Y door,

y 'is practically ventirely automatic requiring only an operation of the start buttont'ofr'imi-v tiate and lcause the complet-ion of 'a' full'cy'cle case of an inspection ori emergency stop, as before stated. Asa co" sequence, the machine can be readily controlled from fa central station at which the start button is complshesswppifngfof the cyliildeniwah um j I with the casing .i905

e functions-11nd advantages otthe'aparatus areV obvious.` 'The 'washingA machine`l v f of washing operations excepting only in the lou ' located and timed in its relation to the operat-ion of other machines. For this reason, the

visible signalling deviceis .of value, in addition to which each of the signalling4 lamps can be supplemented or'replaced by audible or other ksignals located at the machine or at a distant central station, or visible signals can be placed 'in cooperating electrical relation both at the machine and at other points.

What I claim is: 1. An automatic. Washing machine provided 'with a .door-through which the material is introduced .to and withdrawn from the machine and with operating means adapted to cause said machine to perform a cycle of washing steps, and means lcontrolled by closing movement of said door for. causing said operating means to produce said cycle.

2. Washing apparatus, comprislng av relim ceptacle having va door, lmeansffor subject# ing materials to be Washedin said receptacle to 'a series of washing operations, means controlled uin .timed relation with-said prior named means for indicating at all times throughout saidseries of operations the particular operation being then performed, and means controlled by closing movement of lsaid door for causing act said prior named means.

uatlon of both of ,.130

3. An automatic Washing .machine, coin- .prising a receptacle for the material to -be Washed, a door in said receptacle, means for controlling the flow of washing materials to and' from said receptacle and the operation of vsaid machine in such manner that the machine .performs a cycle of washing steps, means controlled in step with operation of `said controlling means for indicating at al1 times the particular Washing or treating ln l steps of the cycle being then performed, and means controlled by closing movement of Asaid door for causing actuation of both said EMIL J. CARROLL. 

